photo-uthngsapher



:CHARLES WHITTAKER.,-jor MIL'VVLIUKEE,A WIjsooNsIN *Lettere Patent'lv'o. 79,88-3, dated July 14, 18,68.

IMPROVEMENT IN APPAIMTUS ron MoVINe HEAVY. BoDIBs.

llg Stlntnle 'referiert in in tlientrtter @that mit making nrt uf the same.

To ALI. WIIOM IT MAMo oNonnN':A y

Be it known that I, CHARLES WHITTAKER, of the city andrcounty of Milwaukee, and State of Wisconsin,

have invented a new and useful- Improvement in.Apparatus for Raising'and Moving Heavy Bodies; and I do hereby declare that the following is a'full, clear, and exactid'escription thereof, which will enable those skilled inthe art to make and use the same, reference being had ytothe accompanying drawing, forming part of this specification, in which- -lllgure 1 lis aside vview. Figure-2, a top View of the bed-frame andgearing, 'with the covers to keep out dirt removed.

Figure 3 a front end view. Figure 4 showing wormfwheels and endless screws.v Similarl letters of reference lin each of the figures indicate corresponding parts. v

The object of my invention is to provide a machine for raising-.heavy bodies, andmovingthe same toi any i desired point with facility.

'A is the bed-frame. v B, posts at eachcorner ofthe bed-frame, with girts or pl'atesontheir tops, running longitudinally of the I machine. i i I C, wheels under the machine, the two underfthe rear end zied, and the two under the front end with an axle common to both, with bolster, king-bolt, and tongue.

D, tong-ue with which to move the machine.

E,upright screws, their lower ends centred, standing on steps, and their upper endsin holes in the girts ontheheads of post s B. Il', side-beams, through which pass screws E.

` G, loops or stirrups, hanging on side-beams l?, with which to lift loads.

H, shafts hung in bearings, with which tooperate screws E. I, bevel-wheels on screws i K, bevel-wheels on shaft H, gearingnto bevel-wheels I.

, L, bevel-wheel. M, crank-wheel. N, cog-wheel. O Pinion. I P, shaft on which are bevel-wheel L and cog-wheel N. Q, coveringrfor the working-gear of the machine. v Fig. 4 is drawn to show my miichne when thescrews E are made and operated with worm-wheels on the screws E, and endless screws on shaft H, meshing together instead of pinion I and K. i

p Operation. Back the machine up to the body to be raised and nio-ved, so'that the body shall be between the side-pieces A, the forward strap G hanging in place, the sid-@beams having Vbeen run down, so thatthe loop of straps G can be slipped under the load to be raised. Slipthe straps G under the load, one at the frontend, the other at the rear, then the load .will be above the bag or Vloop of the .strapsthe upper ,endsof the straps hooked over beams F. VWhen the operator turns crank-wheel M by the operating-handle, it will turn pinion C, which, mesbinginto cog-wheel N, turns shaft P and pinion L, gearing into pinion I on the first screw E, andthat, with pinion K, turning shaft H, puttingall the screws in motion at the same time, and as the screws turn, beams If` are raised, and with them the straps G, raising the load, which, when raised high enough, by pulling on tongue D, the machine,with its load, is taken to any point desired, and then the load can be raised higher, if required, and blocked up, when, by reversing the motion of crank-.wheel M,-th.e load is lowered on to the blocking, and the machine may then be removedhlcaving the load in place. y

The screws E, .as sb'own in the drawings, 'areall out right-handfand the bevel-gear on them' is arranged so as to have them turn all one way. The gearfwheel on the rst screw is above' the gear-wheelon shaft H, gearing into it, and the gear-wheel on the other. screw, on the same-side of the maohine,.is below the wheel on shaft H, as'is also the bevel-wheel on the forward seew, opposite the first screw; andthe bevel-wheel on the other' hind sci-ew is above' the wlieel'on shaft H, meshing intoit. This arrangement secures the operation of the screws all in one direction when crank-wheel M is turned.'

As an equivalent to this arrangement, I sometimes use worm-wheels on screw E, andendless screws on shafts H, arranged as shown on fig'. 4, for the purpose of operating the screws all one way, and thus prevent the necessity of having my screws cut part right and partlefthand.

What I claim .as my invention, and desire to -secure by Letters Patent, is-` r The portable'hoisting-appsi'atus, consisting of a frame, A, mounted on wheels, withraseres of vertical `:wiens/,'E, with the bars F and stirrups G arranged to be operated by bevel-gear attached to the horizontal shafts H, al1 substantially as escribed. Y

' CHARLES WHITTAKER.

Witnesses:

J. B. SMITH, PERCY B. SMITH. 

